The First Spectrum of Krypton

by William F. Meggers and T. L. De Bruin

Excerpt

This action of the conference 1s responsible in part for the present investigation. _since certain properties of spectral lines (pressure effect, reversibility, Zeeman effect, relative intensity) are now known to be related to the spectral terms (atomic energy levels) it appeared desirable first to classify the spectrum lines so as to be able' to draw upon theoretical considerations in a discussion of the suitability of a line as a standard Wave length. Before the structure of the Kr I spectrum could be successfully analyzed it was necessary. To make an entirely new description of the spectrum, since the older data are entirely inadequate for this purpose The present paper, therefore, deals with a preliminary description and with the interpretation of the Kr I spectrum. In later publications, we expect to give other data on interferometer comparisons of wave lengths, studies of hyper fine structure, detection of fainter lines, and extensions of series to higher members.